upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/arch/sandbox/include/asm/eth-raw-os.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2015 National Instruments
*
* (C) Copyright 2015
* Joe Hershberger <joe.hershberger@ni.com>
*/
#ifndef __ETH_RAW_OS_H
#define __ETH_RAW_OS_H
#define IFNAMSIZ 16
/**
* struct eth_sandbox_raw_priv - raw socket session
*
* sd: socket descriptor - the open socket during a session
* host_ifname: interface name on the host to use for sending our packets
* host_ifindex: interface index number on the host
* device: struct sockaddr_ll - the host interface packets move to/from
* local: 1 or 0 to select the local interface ('lo') or not
* local_bindsd: socket descriptor to prevent the kernel from sending
* a message to the server claiming the port is
* unreachable
* local_bind_udp_port: The UDP port number that we bound to
*/
struct eth_sandbox_raw_priv {
int sd;
char host_ifname[IFNAMSIZ];
unsigned int host_ifindex;
void *device;
int local;
int local_bind_sd;
unsigned short local_bind_udp_port;
};
/* A struct to mimic if_nameindex but that does not depend on Linux headers */
struct sandbox_eth_raw_if_nameindex {
unsigned int if_index; /* Index of interface (1, 2, ...) */
char *if_name; /* Null-terminated name ("eth0", etc.) */
};
/* Enumerate host network interfaces */
struct sandbox_eth_raw_if_nameindex *sandbox_eth_raw_if_nameindex(void);
/* Free the data structure of enumerated network interfaces */
void sandbox_eth_raw_if_freenameindex(struct sandbox_eth_raw_if_nameindex *ptr);
/*
* Check if the interface named "ifname" is a localhost interface or not.
* ifname - the interface name on the host to check
*
* returns - 0 if real interface, 1 if local, negative if error
*/
int sandbox_eth_raw_os_is_local(const char *ifname);
/*
* Look up the name of the interface based on the ifindex populated in priv.
*
* Overwrite the host_ifname member in priv based on looking up host_ifindex
*
* returns - 0 if success, negative if error
*/
int sandbox_eth_raw_os_idx_to_name(struct eth_sandbox_raw_priv *priv);
int sandbox_eth_raw_os_start(struct eth_sandbox_raw_priv *priv,
unsigned char *ethmac);
int sandbox_eth_raw_os_send(void *packet, int length,
struct eth_sandbox_raw_priv *priv);
int sandbox_eth_raw_os_recv(void *packet, int *length,
const struct eth_sandbox_raw_priv *priv);
void sandbox_eth_raw_os_stop(struct eth_sandbox_raw_priv *priv);
#endif /* __ETH_RAW_OS_H */